Selecting a Conductivity Meter

Conductivity Electrode / Sensor & Instrument Selection Guide

Conductivity is a measure of the ability of a fluid to conduct an electrical current. In water this ability is due to the presence of various ionised substances in solution. Conductivity measurements usually include temperature compensation.

To help you choose the right conductivity electrode and sensor electronics for your specific liquid applications needs, follow these recommended steps.

Step 1: Determine Application RequirementsDefining the following variables before building your system will ensure peak performance from your Signet conductivity sensors, electrodes and instruments.

Conductivity measurement range

Installation requirements

Pipe size and material

Chemical compatibility of all wetted parts to process chemicals

Hazardous location requirements

Conductivity system specifications (such as temperature and pressure)

Performance requirements of conductivity sensor or electrode

Fluid particulates

Viscosity of fluids

Step 2: Select Conductivity Sensor/Electrode TechnologyBased on the application requirements, choose a conductivity sensor or electrode. Then, determine your signal output requirement to allow you to match the right instrument.

Step 3: Choose Conductivity Instrument (Transmitter, Controller, Monitor etc)Choose a conductivity/resistivity or multi-parameter instrument from the comprehensive Signet offering. All units are available in 1/4 DIN panel or field configuration and are available with digital, analogue, or analogue/digital display. Various retrofit adapters and mounting accessories are also available.

Step 4: Determine Installation RequirementsWe offer a wide selection of installation fittings to suit the select conductivity insertion sensor and electrodes. These fittings are specifically designed to ensure the proper placement of the sensor or electrode in the system to achieve accurate readings.

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Need Advice?

iCenta is a instrumentation and control solution specialist with experience in control technologies for diverse applications, fluid types and process conditions. Call iCenta now for advice, sales & technical information on 0845 895 1020.

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